The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?

A) 4 years

B) 8 years

C) 10 years

D) 12 years

Since the children were born at the interval of three years, let us assume their ages as x, x+3,x+6,x+9, and x+12.
Given that the sum of five children is 50
x+x+3+x+6+x+9+x+12 = 50
5x+30 = 50
5x = 50-30
5x=20
x=4
Hence, age of the youngest child is 4 years.

Related MCQs:
  1. The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
  2. Ali is twice as old as her youngest brother. If the difference between their ages is 15 years. How old is her youngest brother?
  3. The average age of A and B is 30 year that of B and C is 32 years and the average age of C and A is 34 years. the age of C is:
  4. Emmanuel Macron was elected as the youngest-ever President of France in 2017 at the age of: